EP4024600A4 - Positive electrode current collector having conductive anti-corrosion layer formed on tab, positive electrode comprising same, and lithium secondary battery - Google Patents

Positive electrode current collector having conductive anti-corrosion layer formed on tab, positive electrode comprising same, and lithium secondary battery Download PDF

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Publication number
EP4024600A4
EP4024600A4 EP21772555.5A EP21772555A EP4024600A4 EP 4024600 A4 EP4024600 A4 EP 4024600A4 EP 21772555 A EP21772555 A EP 21772555A EP 4024600 A4 EP4024600 A4 EP 4024600A4
Authority
EP
European Patent Office
Prior art keywords
positive electrode
tab
secondary battery
current collector
layer formed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP21772555.5A
Other languages
German (de)
French (fr)
Other versions
EP4024600A1 (en
Inventor
Hyunwoong Yun
Sunwook HWANG
Hoejin Hah
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
LG Energy Solution Ltd
Original Assignee
LG Energy Solution Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020210002734A external-priority patent/KR20210117915A/en
Application filed by LG Energy Solution Ltd filed Critical LG Energy Solution Ltd
Publication of EP4024600A1 publication Critical patent/EP4024600A1/en
Publication of EP4024600A4 publication Critical patent/EP4024600A4/en
Pending legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/628—Inhibitors, e.g. gassing inhibitors, corrosion inhibitors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/665—Composites
    • H01M4/667—Composites in the form of layers, e.g. coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0565—Polymeric materials, e.g. gel-type or solid-type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
    • H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
    • H01M10/0566—Liquid materials
    • H01M10/0568—Liquid materials characterised by the solutes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/13—Electrodes for accumulators with non-aqueous electrolyte, e.g. for lithium-accumulators; Processes of manufacture thereof
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/621—Binders
    • H01M4/622—Binders being polymers
    • H01M4/623—Binders being polymers fluorinated polymers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/661—Metal or alloys, e.g. alloy coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/663—Selection of materials containing carbon or carbonaceous materials as conductive part, e.g. graphite, carbon fibres
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/64—Carriers or collectors
    • H01M4/66—Selection of materials
    • H01M4/668—Composites of electroconductive material and synthetic resins
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/531—Electrode connections inside a battery casing
    • H01M50/534—Electrode connections inside a battery casing characterised by the material of the leads or tabs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/50—Current conducting connections for cells or batteries
    • H01M50/571—Methods or arrangements for affording protection against corrosion; Selection of materials therefor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/021—Physical characteristics, e.g. porosity, surface area
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M2004/026—Electrodes composed of, or comprising, active material characterised by the polarity
    • H01M2004/028—Positive electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0025—Organic electrolyte
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M2300/00—Electrolytes
    • H01M2300/0017—Non-aqueous electrolytes
    • H01M2300/0025—Organic electrolyte
    • H01M2300/0028—Organic electrolyte characterised by the solvent
    • H01M2300/0037—Mixture of solvents
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Landscapes

  • Chemical & Material Sciences (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Inorganic Chemistry (AREA)
  • Composite Materials (AREA)
  • Dispersion Chemistry (AREA)
  • Cell Electrode Carriers And Collectors (AREA)
  • Secondary Cells (AREA)
EP21772555.5A 2020-03-19 2021-01-20 Positive electrode current collector having conductive anti-corrosion layer formed on tab, positive electrode comprising same, and lithium secondary battery Pending EP4024600A4 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
KR20200034072 2020-03-19
KR1020210002734A KR20210117915A (en) 2020-03-19 2021-01-08 Positive Electrode Current Collector Having Conductive Anti-corrosion Layer Formed On the Tab, Positive Electrode Comprising the same, And Lithium Secondary Battery
PCT/KR2021/095008 WO2021187965A1 (en) 2020-03-19 2021-01-20 Positive electrode current collector having conductive anti-corrosion layer formed on tab, positive electrode comprising same, and lithium secondary battery

Publications (2)

Publication Number Publication Date
EP4024600A1 EP4024600A1 (en) 2022-07-06
EP4024600A4 true EP4024600A4 (en) 2024-05-01

Family

ID=77771463

Family Applications (1)

Application Number Title Priority Date Filing Date
EP21772555.5A Pending EP4024600A4 (en) 2020-03-19 2021-01-20 Positive electrode current collector having conductive anti-corrosion layer formed on tab, positive electrode comprising same, and lithium secondary battery

Country Status (4)

Country Link
US (1) US20230155134A1 (en)
EP (1) EP4024600A4 (en)
CN (1) CN114503312A (en)
WO (1) WO2021187965A1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021214965B4 (en) 2021-12-22 2024-05-29 Volkswagen Aktiengesellschaft Current collector for a cathode of a lithium-ion battery cell and method for producing such a current collector
CN117894993A (en) * 2022-10-08 2024-04-16 珠海冠宇电池股份有限公司 High-voltage battery

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139852A (en) * 1988-11-18 1990-05-29 Komatsu Ltd Electrode of plastic battery and its manufacture
EP2482368A1 (en) * 2011-01-31 2012-08-01 Sanyo Electric Co., Ltd. Stack type battery and method of manufacturing the same
KR101737217B1 (en) * 2014-09-26 2017-05-18 주식회사 엘지화학 Surfur-carbonnanotube complex, method of preparing the same, cathode active material for lithium-sulfur battery including the same and lithium-sulfur battery including the same
CN107482155A (en) * 2017-07-20 2017-12-15 湖南秒冲新能源科技有限责任公司 A kind of graphite ene coatings battery tab structure and its manufacture method for adapting to high power work

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002203562A (en) * 2000-12-28 2002-07-19 Toshiba Corp Non-aqueous electrolyte secondary battery
JP2010074083A (en) * 2008-09-22 2010-04-02 Sanyo Electric Co Ltd Electrolytic capacitor, and method of manufacturing the same
TW201015595A (en) * 2008-09-22 2010-04-16 Sanyo Electric Co Winding-type electrolytic capacitor and method of manufacturing the same
DE102009001812A1 (en) 2009-03-24 2010-09-30 Bernhard Mey Device for punching springs for arrows, has triggering device comprising two release units, where one release unit contains locking block that unit is engaged or disengaged against locking device of operating lever arm of other release unit
CN102648546A (en) * 2009-09-25 2012-08-22 大金工业株式会社 Positive electrode current collector laminate for lithium secondary battery
KR20120031606A (en) * 2010-09-27 2012-04-04 주식회사 엘지화학 Electrode lead whose protection layer for anti-corrosion is selectively formed, and secondary battery comprising thereof
JP5957913B2 (en) * 2012-01-31 2016-07-27 凸版印刷株式会社 Secondary battery electrode terminals
PL3043405T3 (en) * 2013-10-29 2020-05-18 Lg Chem, Ltd. Gel polymer electrolyte and lithium secondary battery including same
KR101774087B1 (en) * 2014-09-30 2017-09-12 주식회사 엘지화학 Electrode assembly, manufacture thereof, and secondary batteries including same
KR101829849B1 (en) * 2014-10-31 2018-02-19 주식회사 엘지화학 Electrode assembly and secondary battery including the same
KR102044692B1 (en) * 2016-11-24 2019-11-14 주식회사 엘지화학 Electrode for Secondary Battery Comprising Layer for Protecting Electrode Layer

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02139852A (en) * 1988-11-18 1990-05-29 Komatsu Ltd Electrode of plastic battery and its manufacture
EP2482368A1 (en) * 2011-01-31 2012-08-01 Sanyo Electric Co., Ltd. Stack type battery and method of manufacturing the same
KR101737217B1 (en) * 2014-09-26 2017-05-18 주식회사 엘지화학 Surfur-carbonnanotube complex, method of preparing the same, cathode active material for lithium-sulfur battery including the same and lithium-sulfur battery including the same
CN107482155A (en) * 2017-07-20 2017-12-15 湖南秒冲新能源科技有限责任公司 A kind of graphite ene coatings battery tab structure and its manufacture method for adapting to high power work

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2021187965A1 *

Also Published As

Publication number Publication date
CN114503312A (en) 2022-05-13
US20230155134A1 (en) 2023-05-18
EP4024600A1 (en) 2022-07-06
WO2021187965A1 (en) 2021-09-23

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